Recompute Error when opening file created with v0.21.2 in v1.0.0RC2 (Curves: Gordon fails to recompute)

[EarlJay1]

On recomputing the model when opening the 1.0RC for the first time, it fails reporting errors regarding the Gordon surface. The AddOns were updated. Don't know if this goes into here, but the file opens fine in 0.21.2

2:22:56 pyException: Traceback (most recent call last): File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/gordonFP.py", line 144, in execute s = gordon_surf.surface() ^^^^^^^^^^^^^^^^^^^^^ File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/gordon.py", line 358, in surface self.perform() File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/gordon.py", line 326, in perform self.gordon_surf = builder.surface_gordon() ^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/gordon.py", line 109, in surface_gordon self.perform() File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/gordon.py", line 105, in perform self.create_gordon_surface() File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/gordon.py", line 230, in create_gordon_surface surfaces_vector = bsa.createCommonKnotsVectorSurface(surfaces_vector_unmod, self.par_tol) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/BSplineAlgorithms.py", line 363, in createCommonKnotsVectorSurface self.makeGeometryCompatibleImpl(adapterSplines, tol) File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/BSplineAlgorithms.py", line 336, in makeGeometryCompatibleImpl spline.insertKnot(resultKnots[knotIdx], resultMults[knotIdx], par_tolerance) File "/home/earl/.local/share/FreeCAD/Mod/Curves/./freecad/Curves/BSplineAlgorithms.py", line 104, in insertKnot raise RuntimeError <class 'RuntimeError'>:

Full version info

OS: Ubuntu 22.04.5 LTS (ubuntu:GNOME/ubuntu) Word size of FreeCAD: 64-bit Version: 1.0.0RC2.38806 (Git) AppImage Build type: Release Branch: (HEAD detached at 1.0rc2) Hash: 3d63fc6c2f665a8d5e6468845a419bcac80756c7 Python 3.11.9, Qt 5.15.13, Coin 4.0.3, Vtk 9.2.6, OCC 7.7.2 Locale: German/Germany (de_DE) Stylesheet/Theme/QtStyle: unset/unset/Qt default Installed mods:

• Curves 0.6.48
• fasteners 0.5.29

[EarlJay1]

I played around a bit more with 1.0Rc2 and found that there are numerous and frequent crashes working with Gordon surfaces, not only in this case.

[VinceBa]

Need a file to investigate....